Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437921 | Electronic components mounting base material | Yasuo Kogo, Takefumi Ito, Kiyoshi Yoshizaki, Takeji Fujihara, Hirofumi Yamashita | 1995-08-01 |
| H1450 | Silver halide light-sensitive photographic material | Takaaki Kojima, Takahiko Nojima | 1995-06-06 |
| 5362626 | Silver halide photographic light-sensitive material | Takaaki Kojima | 1994-11-08 |
| 5356760 | Silver halide photographic light-sensitive material with black dye forming coupler | Shigeo Tanaka | 1994-10-18 |
| 5314796 | Silver halide color photographic light sensitive material | Kazuhiro Murai, Makoto Kajiwara, Hirokazu Sato, Shinri Tanaka | 1994-05-24 |
| 5292633 | Silver halide black & white light-sensitive material comprising spectrally sensitized silver halide grains containing rhodium in a specific amount | Masataka Nakano, Yuji Tanaka | 1994-03-08 |
| 5278041 | Silver halide color photographic light sensitive material | Shuji Murakami, Yukio Ohya, Tsuyoshi Ikeda, Shigeo Tanaka | 1994-01-11 |
| 5272053 | Silver halide photographic light-sensitive material | Shigeo Tanaka, Hirokazu Sato | 1993-12-21 |
| 5225381 | Vacuum switch contact material and method of manufacturing it | Eizo Naya | 1993-07-06 |
| 5219722 | Silver halide color photographic light-sensitive material | Yuji Tanaka, Masataka Nakano | 1993-06-15 |
| 5134060 | Silver halide photographic emulsion prepared with silver halide grains formed in the presence of a water soluble iridium compound and a nitrogen-containing heterocyclic compound | Hideaki Maekawa, Makoto Kajiwara, Masanobu Miyoshi | 1992-07-28 |
| 5130068 | Method of manufacturing vacuum switch contact material from Cr.sub.2 O.sub.3 powder | Eizo Naya | 1992-07-14 |
| 5126237 | Silver halide light-sensitive photographic material | Masataka Nakano | 1992-06-30 |
| 5082765 | Method of processing light-sensitive silver halide photographic material | Kaoru Onodera, Keiji Ohbayashi, Shigeo Chino | 1992-01-21 |
| 5019156 | Sintered electric contact material for vacuum switch tube and process for manufacturing the same | Eizo Naya | 1991-05-28 |
| 4994362 | High silver halide chloride content color photographic light-sensitive materials including cyan couplers and nitrogen-containing heterocyclic mercapto compounds | Shun Takada | 1991-02-19 |
| 4971866 | Vacuum switch contact materials and the manufacturing methods | Eizo Naya | 1990-11-20 |
| 4962016 | Silver halide photographic light-sensitive material | Shigeo Chino | 1990-10-09 |
| 4927989 | Contact material for vacuum circuit breaker | Eizo Naya, Seiichi Miyamoto | 1990-05-22 |
| 4914016 | Silver halide photographic light-sensitive material and processing method therefor | Masanobu Miyoshi, Makoto Kajiwara, Shigeo Tanaka | 1990-04-03 |
| 4906554 | Color developing solution of light-sensitive silver halide color photographic material and processing method of light-sensitive silver halide color photographic material using the same | Masao Ishikawa, Shigeharu Koboshi, Kazuhiro Kobayashi, Keiji Ohbayashi, Shigeo Chino +1 more | 1990-03-06 |
| 4886108 | Method for forming a fiber-reinforced metal sheet | Shin Utsunomiya, Takeshi Morita | 1989-12-12 |
| 4870231 | Contact for vacuum interrupter | Eizo Naya | 1989-09-26 |
| 4863846 | Silver halide photographic light-sensitive material | Shigeo Tanaka, Makoto Kajiwara, Masanobu Miyoshi | 1989-09-05 |
| 4863844 | Gold and sulfur sensitized silver halide light-sensitive photographic material | Keiji Ohbayashi, Shigeo Tanaka | 1989-09-05 |